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Law Incorporation [45]
3 years ago
6

Which of these is the ionic compound?

Chemistry
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

RbF

mgo

nh4cl

because electrons are lost by and element forming a cation and gained by the other element forming an anion and held together by electrostatic forces

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A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric
salantis [7]

Answer:

Explanation:

When we react Hydrochlorid Acid with zinc we have the following reaction:

2HCl(aq) + Zn(s) --> ZnCl2(aq) + H2(g)

The hydrogen gas formed is lost to the environment, so we can affirme that in the start we have the mass for all the H, Cl and Zn atoms in the solution, but after the reaction occurs, we have only the mass for the Cl and Zn atoms.

That's why the mass is less than the original.

The law that the student was told is only applied to closed environments.

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Answer:

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